Selective Link

Maybe I'm missing the obvious here or maybe it's been a while since I 
created a new DP application:
I have a panel(1) containing, among other things, Names and a separate 
field of "A", "S" or "F" to show if this person is an Advertiser, 
Subscriber or receives a Free copy of a magazine.
I need a second panel(2) containing the same Name to show payments made 
by advertisers and a link between the two but I want the link from panel 
1 to 2 only to work for Advertisers.
What is the best way to do this please?

TIA

Michael